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/*
* Qt implementation of OpenWnn library
* This file is part of the Qt Virtual Keyboard module.
* Contact: http://www.qt.io/licensing/
*
* Copyright (C) 2015 The Qt Company
* Copyright (C) 2008-2012 OMRON SOFTWARE Co., Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef WNNWORD_H
#define WNNWORD_H
#include <QString>
#include <QList>
class WnnPOS
{
public:
WnnPOS() :
left(0),
right(0)
{ }
WnnPOS(int left, int right) :
left(left),
right(right)
{ }
/** The part of speech at left side */
int left;
/** The part of speech at right side */
int right;
};
class WnnWord
{
public:
WnnWord() :
id(0),
candidate(),
stroke(),
frequency(0),
partOfSpeech(),
attribute(0)
{ }
WnnWord(const QString &candidate, const QString &stroke) :
id(0),
candidate(candidate),
stroke(stroke),
frequency(0),
partOfSpeech(),
attribute(0)
{ }
WnnWord(const QString &candidate, const QString &stroke, int frequency) :
id(0),
candidate(candidate),
stroke(stroke),
frequency(frequency),
partOfSpeech(),
attribute(0)
{ }
WnnWord(const QString &candidate, const QString &stroke, const WnnPOS &posTag) :
id(0),
candidate(candidate),
stroke(stroke),
frequency(0),
partOfSpeech(posTag),
attribute(0)
{ }
WnnWord(const QString &candidate, const QString &stroke, const WnnPOS &posTag, int frequency) :
id(0),
candidate(candidate),
stroke(stroke),
frequency(frequency),
partOfSpeech(posTag),
attribute(0)
{ }
WnnWord(int id, const QString &candidate, const QString &stroke, const WnnPOS &posTag, int frequency) :
id(id),
candidate(candidate),
stroke(stroke),
frequency(frequency),
partOfSpeech(posTag),
attribute(0)
{ }
WnnWord(int id, const QString &candidate, const QString &stroke, const WnnPOS &posTag, int frequency, int attribute) :
id(id),
candidate(candidate),
stroke(stroke),
frequency(frequency),
partOfSpeech(posTag),
attribute(attribute)
{ }
virtual ~WnnWord()
{ }
virtual bool isClause() const
{
return false;
}
virtual bool isSentence() const
{
return false;
}
int id;
QString candidate;
QString stroke;
int frequency;
WnnPOS partOfSpeech;
int attribute;
};
class WnnClause : public WnnWord
{
public:
WnnClause(const QString &candidate, const QString &stroke, const WnnPOS &posTag, int frequency) :
WnnWord(candidate, stroke, posTag, frequency)
{ }
WnnClause(const QString &stroke, const WnnWord& stem) :
WnnWord(stem.id, stem.candidate, stroke, stem.partOfSpeech, stem.frequency)
{ }
WnnClause(const QString &stroke, const WnnWord& stem, const WnnWord& fzk) :
WnnWord(stem.id, stem.candidate + fzk.candidate, stroke, WnnPOS(stem.partOfSpeech.left, fzk.partOfSpeech.right), stem.frequency, 1)
{ }
bool isClause() const
{
return true;
}
};
class WnnSentence : public WnnWord
{
public:
WnnSentence(const QString &input, const QList<WnnClause> &clauses) :
WnnWord()
{
if (!clauses.isEmpty()) {
elements = clauses;
const WnnClause &headClause = clauses.first();
if (clauses.size() == 1) {
id = headClause.id;
candidate = headClause.candidate;
stroke = input;
frequency = headClause.frequency;
partOfSpeech = headClause.partOfSpeech;
attribute = headClause.attribute;
} else {
QString candidateBuilder;
for (QList<WnnClause>::ConstIterator ci = clauses.constBegin();
ci != clauses.constEnd(); ci++) {
candidateBuilder.append(ci->candidate);
}
const WnnClause &lastClause = (WnnClause)clauses.last();
id = headClause.id;
candidate = candidateBuilder;
stroke = input;
frequency = headClause.frequency;
partOfSpeech = WnnPOS(headClause.partOfSpeech.left, lastClause.partOfSpeech.right);
attribute = 2;
}
}
}
WnnSentence(const QString &input, const WnnClause &clause) :
WnnWord(clause.id, clause.candidate, input, clause.partOfSpeech, clause.frequency, clause.attribute)
{
elements.append(clause);
}
WnnSentence(const WnnSentence &prev, const WnnClause &clause) :
WnnWord(prev.id, prev.candidate + clause.candidate, prev.stroke + clause.stroke, WnnPOS(prev.partOfSpeech.left, clause.partOfSpeech.right), prev.frequency + clause.frequency, prev.attribute)
{
elements.append(prev.elements);
elements.append(clause);
}
WnnSentence(const WnnClause &head, const WnnSentence *tail = 0) :
WnnWord()
{
if (tail == 0) {
// single clause
id = head.id;
candidate = head.candidate;
stroke = head.stroke;
frequency = head.frequency;
partOfSpeech = head.partOfSpeech;
attribute = head.attribute;
elements.append(head);
} else {
// consecutive clauses
id = head.id;
candidate = head.candidate + tail->candidate;
stroke = head.stroke + tail->stroke;
frequency = head.frequency + tail->frequency;
partOfSpeech = WnnPOS(head.partOfSpeech.left, tail->partOfSpeech.right);
attribute = 2;
elements.append(head);
elements.append(tail->elements);
}
}
bool isSentence() const
{
return true;
}
QList<WnnClause> elements;
};
#endif // WNNWORD_H
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